The only fear I got from new cryptocurrency is that as soon as they got listed on exchange and dump by hunters it dies right away. I had lots of tokens who ended up in that way and even some of them never got listed, all of my time and effort just become a waste for nothing. There's even a tokens worth of a penny.
One more thing I fear several new cryptocurrencies because they're most likely a scam. They used to be active during the campaign as soon as the campaigns end they literally don't respond to anybody, and yeah I experience that so be wary.
Oh, yes. This is the main fear of all us, those, who invested in new cryptocurrencies. Meanwhile, you must be more optimistic. Remember Ethereum. When it appeared, many people called it something like a scam or a fraud. Now, ETH is even declared the king of altcoins.
Well, that is normal since most people are scared to be left out hodling some unusable token so a lot of Bounty hunters will sell their tokens once they got their hands on it. Another thing is ETH was already king of Alternate Coins in the past since its next to Bitcoin.
Another thing people are scared of is that the bounty will not push through being sold on exchanges since most bounties before are prone to that problem.